A way to allow only certain emotes from a list given from the server

Why is this useful?

Not every user wants the "Fap" emote on his server (or wants to limit the usable emotes)

Understood.
Expect this feature in the snapshot versions soon.

I'm not sure if I want to include a feature like that in the core mod. But it is possible from the server-side API
(on Fabric/Forge/Spigot servers)